| /* |
| * |
| * Copyright 2016 gRPC authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| #include <grpc/support/port_platform.h> |
| |
| #include <string.h> |
| |
| /* Provide a wrapped memcpy for targets that need to be backwards |
| * compatible with older libc's. |
| * |
| * Enable by setting LDFLAGS=-Wl,-wrap,memcpy when linking. |
| */ |
| |
| #ifdef __linux__ |
| #if defined(__x86_64__) && !defined(GPR_MUSL_LIBC_COMPAT) |
| __asm__(".symver memcpy,memcpy@GLIBC_2.2.5"); |
| void *__wrap_memcpy(void *destination, const void *source, size_t num) { |
| return memcpy(destination, source, num); |
| } |
| #else /* !__x86_64__ */ |
| void *__wrap_memcpy(void *destination, const void *source, size_t num) { |
| return memmove(destination, source, num); |
| } |
| #endif |
| #endif |